Improvement in millstone-balancing devices



L. READ.

MILLSTONE BALANCING DEVICE. No. 192,454. I Patented June 26,1877.

INVENTUB ATTORNEYS.

MPETERS, FHOTGLITHDGRAPHER. WASHINGTON D C UNITED STATES PATENT OFFICE.

LUTHER READ, OF HENDERSON, NE\V YORK.

IMPROVEMENT lN MlLLSTONE-BALANCING DEVICES.

Specification forming part of Letters Patent No. 192,454, dated June 26,1877; application filed May 5, 1877.

To all whom it may concern:

Be it known that I, LUTHER READ, of Henderson, in the county ofJefferson and State of New York, have invented a new and usefulImprovement in Millstone Balance, of which the following is aspecification Figure l is a top, and Fig. 2 a side, View of a"millstoneillustrating my invention, parts being broken away to show theconstruction.

Similar letters of reference indicate corresponding parts.

The object of the invention is to enable a millstonc to be accuratelybalanced, both standing and running, in a very short time.

The invention consists in the horizontal cups formed in the middle andupper parts, either or both, of each quarter of a inillstone beneath theband, and provided with a hole leading into the upper part of said cupsthrough said band, and closed with a screw, as hereinafter fullydescribed.

A represents a millston'e which is bound with a wide upper band, B, anda narrow lowerband, O, in the usual way. In the upper and lower partsofeach quarter of the stone A is formed a horizontal cup, I). The lowercup D is level'with or a little below the cockcye, and the upper cup isat or near the upper edge of the band B. The cups D are made withstraight bottoms and ends, and with their tops inclining upward fromtheir ends to the center, as shown in Figs. 1 and 2. The cups D I preferto make about nine inches long, about one and a quarter inch deep, andabout one and a half inch wide or high in the widest part or center.

The cups D are covered or closed by the band B, and through said band,at the top or angle of each cup D, is formed a hole, d, which hole isclosed with a screw, E.- The holes 61 should be large enough for shot topass through them. Should too many shot be put into the cups, by turningthe stone A over so as to bring the angle of the top of the cups Ddownward, the shot will run out through the holes 11.

In the case of old stones the lower cups D may be formed in the stonethrough holes cut in the band B, which holes are afterward cov-- ered bypatches 1), secured to the band B by screws. In this case the upper cupsD may be formed by removing a part of the plaster, putting in the shot,and replacing the plaster.

The upper cups D are designed for use for balancing the stone when it isheavy on top upon one side, and heavy on the bottom uponthe other side.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- A millstone provided with the two alternate sets ofcups D upon its peripheral surface, as described, covered and inclosedby a sheetmetal band, B, having inlet-openings (1, as and for thepurpose specified.

LUTHER READ.

Witnesses G. H. BURLINGAM, M. E. J OINER.

